Shandong Steel Refining Pipe Industry Co., Ltd.

Shandong Steel Refining Pipe Industry Co., Ltd. is located in the Economic and Technological Development Zone of Liaocheng City and is a leading enterprise specializing in the production of double-sided submerged arc welded spiral high-frequency straight seam pipes. Guided by the fundamental tenet of "Absolute Sincerity and Trust, Mutual Strength and Win-Win," the company adheres to the development strategy of technological innovation, upholds business ethics, and continuously innovates and progresses, earning reputation, market share, and recognition from all social strata. The company covers an area of 300,000 square meters and has a floor area of 60,000 square meters. It currently employs over 500 staff, including 36 management personnel with technical degrees such as junior college and bachelor's degrees, and 128 technical personnel with titles of assistant engineer and above.

Our company operates in the production of spiral steel pipes, seamless steel pipes, straight seam steel pipes, anti-corrosion and insulated steel pipes, and a series of pipe fittings. We specialize in manufacturing double-sided submerged arc-welded spiral pipes with wall thickness ranging from 6mm to 40mm, in sizes ranging from Ф219mm to 3620mm. Equipped with 6 large-scale steel pipe production lines, our annual output of spiral steel pipes reaches 300,000 tons. The materials we use include Q235B, Q345B (16Mn), 20#, L245, and L290. We were the first to obtain the ISO9001-2000 international quality system certification and a special equipment manufacturing license issued by the General Administration of Quality Supervision, Inspection, and Quarantine in a single instance. Our products are widely used in many industries such as power, chemicals, oil refining, natural gas, shipbuilding, metallurgy, mining, heating, water treatment, and environmental protection.